What is formula to measure of central angle of an arc
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The formula for the central angle, essentially, is the arc length multiplied by 360, the degrees of a full circle, divided by the circumference of the circle.
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The formula is S = r θ where s represents the arc length, S = r θ represents the central angle in radians and r is the length of the radius. Demonstration of the Formula S = r θ The interative demonstration below illustrates the relationship between the central angle of a circle, measured in radians, and the length of the intercepted arc.
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